EP0200665A2 - Brecher mit kreisförmiger Kammer - Google Patents

Brecher mit kreisförmiger Kammer Download PDF

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Publication number
EP0200665A2
EP0200665A2 EP86450008A EP86450008A EP0200665A2 EP 0200665 A2 EP0200665 A2 EP 0200665A2 EP 86450008 A EP86450008 A EP 86450008A EP 86450008 A EP86450008 A EP 86450008A EP 0200665 A2 EP0200665 A2 EP 0200665A2
Authority
EP
European Patent Office
Prior art keywords
grinding
ring
shaft
vertical
crusher according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86450008A
Other languages
English (en)
French (fr)
Other versions
EP0200665A3 (de
Inventor
Jean Hours
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altairac Sa Ste
Original Assignee
Altairac Sa Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Altairac Sa Ste filed Critical Altairac Sa Ste
Publication of EP0200665A2 publication Critical patent/EP0200665A2/de
Publication of EP0200665A3 publication Critical patent/EP0200665A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members

Definitions

  • the present invention relates to a crusher with circular chamber of the type comprising a frame, a grinding part called grinding nut fixed on a shaft with a vertical axis and another annular part called grinding ring fixed around the first and having 'the same axis, the grinding of the materials introduced between these two parts being carried out by the movement of the grinding nut relative to the grinding ring.
  • the materials introduced into the crusher are ground between the ring and the grinding nut by the continuous movement of spacing and approximation of each point of the outer periphery of the nut relative to the internal periphery of the grinding ring.
  • the present invention aims to overcome these drawbacks by proposing another type of movement of the grinding nut; and other technical solutions related to this provision.
  • the crusher according to the invention comprises a frame (1) comprising an upper part (6) mounted non-fixed on a part (7) which is lower therein, the said upper part sliding in the part (7). It stops in place by relying on an outer ring (8) on shoulders (9) fixed in the part (7); wedges (12) introduced between the outer ring (8) and the shoulders (9) can change the height of the part (6) relative to the part (7).
  • Elastic members for example compression springs (10) bear down on said upper part (6) of the frame.
  • the drive means is an eccentric device (14) whose cake is linked to a horizontal shaft (11) driven in rotation, this shaft is guided in rotation about its axis by bearings (12) by means of wear rings (13).
  • the collar (25) of the eccentric device (14) has a flat upper surface on which the vertical shaft rests and slides.
  • This mechanical assembly is bathed in a lubricating liquid contained in a casing (15) constituting the lower part of the frame.
  • a casing 15 constituting the lower part of the frame.
  • this casing 15 are arranged the bearings 12 of the horizontal shaft 11.
  • Any conventional device for example a hydraulic circuit consisting of a hydraulic pump and hydraulic lines. stiff, can bring said lubricating liquid to the vertical shaft (3) and its wear ring (16) and to other points to be lubricated.
  • the horizontal shaft 11 extends outwardly to the casing 12 to receive a pulley 17 for driving in rotation.
  • This pulley by means of one or more belts (not shown) cooperates in actuation with a not shown drive member.
  • the horizontal shaft (11) can receive externally to the casing, on the side opposite to the pulley 17, a flywheel and that this pulley can also be a flywheel. This arrangement balances the movement of the moving parts of the device.
  • An elastic member presses down on the grinding nut to ensure permanent contact between the vertical shaft (3) and the eccentric device (14) during movement.
  • this elastic member consists of a helical spring 27.
  • this spring is mounted in compression between the bottom 28 of a cylindrical cage 29, carried by the upper end of the nut, and the upper wall 30 of a fixed cover 31, in which the cage 29 of the spring during the movement of raising and lowering of the nut.
  • the cap 31 of generally cylindrical shape, is fixed to an upper horizontal cross member 32 which is fixed by its ends to two vertical cylindrical rods 33 secured by their lower end to the intermediate part of the device. There are provided in the ring 8 orifices for the passage of each vertical rod 33. Each rod is threaded at the upper end to receive a nut 34 under which the cross member 32 is supported under the effect of the action of the elastic member 27.
  • a sealing device (19) is placed between the sheath (5) and the grinding nut to ensure the protection of the vertical shaft (3) against dust.
  • the walnut grinding 2 opposite the sheath 5, coaxially with the vertical shaft 11 and said sheath, is provided with a blind cylindrical cavity into which the end of said sheath penetrates.
  • the above-mentioned sealing device 19 is constituted by an annular seal, this seal being interposed between the cylindrical surface of the upper end of the sleeve and the internal cylindrical surface of the cavity 26.
  • an annular flange 19A coaxial with the sleeve, fixed to the periphery of the cavity 26 to hold the seal 19 in place.
  • the position of the grinding ring relative to the grinding nut can be adjusted using the shims (12). This setting is used to control the grain size of the crushed material.
  • These shims can be replaced by hydraulic cylinders.
  • the space formed between the outer surface of the grinding ring (4) and the grinding nut (2) constitutes the grinding chamber (20).
  • the annular inlet 21 of the grinding chamber (20) allows the passage of materials whose size is larger than those which can pass through the annular outlet (22) of said chamber.
  • the materials to be ground are introduced through the inlet (21), are crushed between the two ground pieces under the effect of vertical oscillatory movement of the ground nut (2) move forward by sliding and by gravity on the outer surface of said nut as and when their size decreases under the ef-fet of these successive crushings and finally exit through the outlet (22) once their size allows. These materials then fall on a ramp inclined downwards and towards a discharge orifice made in the wall of the part 7 and are evacuated by gravity towards receptacles external to the device.
  • the surfaces of the grinding chamber can, according to a first embodiment, be smooth or else, according to a second embodiment, have projections 23 which can for example be formed on the inner surface of the grinding ring.
  • the internal surface of the grinding ring can be constituted by several conical trunk surfaces forming steps joined to one another by shoulders turned downwards, the surfaces in truncated cone having for example an identical apex angle. .
  • the purpose of this arrangement is to create reduced bearing surfaces, so that the pressure on the materials to be ground when the grinding nut (2) approaches said surfaces is increased, which facilitates the grinding of difficult materials. to grind.
  • the upper part (6) of the frame which carries the grinding ring will be raised under the effect of the rise of the grinding nut (2) the downward force exerted on it by the compression springs (10). This increases the pres sion exerted on said body and facilitates its evacuation by the outlet (22) given the arrangement of the inner surface of the grinding ring (4). If the unbreakable body resists the maximum pressure exerted, that is to say when the grinding nut reaches its highest position, an alarm connected to the member exerting a force on the upper part (6) of the frame sets off.
  • this alarm can be triggered either as soon as the grinding nut (2) reaches its highest position or from a predetermined number of oscillations accompanied by a lifting of the said upper part (6) of the built.
  • This alarm may or may not be accompanied by a shutdown of the drive unit.
  • the force exerted by the compression springs (10) is adjusted according to the nature of the materials to be ground.
  • This spring can be replaced by any elastic assembly, for example a hydraulic assembly.
  • this hydraulic assembly is constituted by a plurality of hydraulic cylinders which hold the upper part 6 in abutment on the wedges 12 and by hydraulic accumulators each associated with a hydraulic cylinder.
  • the rod of each cylinder is fixed to the ring 8 while the body is fixed to the shoulder 9.
  • the oil of the cylinders is rejected towards the accumulators which authorizes movement upwards of part 6.
  • a hydraulic pump in addition to the hydraulic cylinders is associated a hydraulic pump so as to control the movement of the part 6 relative to the part 7 during the operations of adjusting the desired particle size for the crushed bodies.
  • the pump is activated and pressurized oil is directed to one of the chambers of the cylinders so that they deploy and separate part 6 from part 7.
  • the user can then remove or add shims 12 in order to adjust the particle size of the crushed materials by changing the position of the ring 4 relative to nut 2.
  • the eccentric drive means can be replaced by a mechanical "rod-crank" assembly or even by a hydraulic assembly comprising a hydraulic cylinder.
  • the seal between the vertical shaft (3) and the dusty area near the outlet (22) of the grinding chamber is easily ensured by means of the seal (19) mounted around the sheath (5) and contained in the symmetrical cylindrical cavity (26) made in the grinding nut (2) in its large base.
  • the material of each constituent part of the crusher is chosen according to its role.
  • the lower surface of the vertical shaft (3) and the flat surface of the collar (25) of the eccentric device (4) must be made of a very hard material, the latter must also make these two surfaces slippery relative to one another. to the other.
  • a wearing part is interposed between the lower end of the shaft 11 and the flat surface of the collar (25).
  • the drive means producing the vertical oscillatory movement can be achieved by any known or known technique
  • the material of each member of the crusher can be chosen from known materials or to know to overcome problems of wear or friction or others.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
EP86450008A 1985-04-24 1986-04-23 Brecher mit kreisförmiger Kammer Withdrawn EP0200665A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8506376 1985-04-24
FR8506376A FR2580954A1 (fr) 1985-04-24 1985-04-24 Concasseur a chambre circulaire

Publications (2)

Publication Number Publication Date
EP0200665A2 true EP0200665A2 (de) 1986-11-05
EP0200665A3 EP0200665A3 (de) 1987-03-11

Family

ID=9318710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86450008A Withdrawn EP0200665A3 (de) 1985-04-24 1986-04-23 Brecher mit kreisförmiger Kammer

Country Status (3)

Country Link
EP (1) EP0200665A3 (de)
ES (1) ES8707128A1 (de)
FR (1) FR2580954A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024235A1 (en) * 1992-05-25 1993-12-09 Roger Trevor Kay A crusher
AU663593B2 (en) * 1992-05-25 1995-10-12 Roger Trevor Kay A crusher
AU784324B2 (en) * 2001-05-04 2006-03-09 Roger Trevor Kay Impact cone crusher
EP2155394A4 (de) * 2007-06-07 2015-03-04 Metso Minerals Inc Brecher, verfahren zum brechen von material und verfahren zur steuerung eines brechers
CN112844576A (zh) * 2020-12-31 2021-05-28 重庆贝亨源节能建材有限公司 石粉下料喷淋防尘吸尘一体装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104826688B (zh) * 2015-05-26 2017-05-17 中国矿业大学 一种可同时破碎和研磨矿石的方法及设备
CN106238131B (zh) * 2016-07-25 2018-06-19 罗杰 一种高效的草料粉碎设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128009C (de) *
US1874329A (en) * 1930-04-24 1932-08-30 Howard C Mcelvain Rock crusher
US2258059A (en) * 1937-12-17 1941-10-07 Lee H Kessler Stone crusher
US2680571A (en) * 1945-11-20 1954-06-08 Bjarme Johan Alfred Pneumatic release means for gyratory crushers
US2579238A (en) * 1948-04-28 1951-12-18 Lippmann Engineering Works Gyratory crusher
FR1286986A (fr) * 1961-02-27 1962-03-09 Concasseur
DE3038559C2 (de) * 1980-10-11 1984-08-23 Johannes 4400 Münster Bürger Vorrichtung zum Quetschen von Hafer für Pferde und Wiederkäuer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024235A1 (en) * 1992-05-25 1993-12-09 Roger Trevor Kay A crusher
AU663593B2 (en) * 1992-05-25 1995-10-12 Roger Trevor Kay A crusher
US5570850A (en) * 1992-05-25 1996-11-05 Kay; Roger T. Crusher
AU784324B2 (en) * 2001-05-04 2006-03-09 Roger Trevor Kay Impact cone crusher
EP2155394A4 (de) * 2007-06-07 2015-03-04 Metso Minerals Inc Brecher, verfahren zum brechen von material und verfahren zur steuerung eines brechers
CN112844576A (zh) * 2020-12-31 2021-05-28 重庆贝亨源节能建材有限公司 石粉下料喷淋防尘吸尘一体装置

Also Published As

Publication number Publication date
FR2580954A1 (fr) 1986-10-31
ES8707128A1 (es) 1987-05-01
ES554341A0 (es) 1987-05-01
EP0200665A3 (de) 1987-03-11

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